What airlines fly to Islip, New York?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Islip, New York from Colorado according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 6 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Colorado to Islip Long Island?

Southwest and Frontier are the most popular carriers operating from Colorado to Islip Long Island

How long does it take to fly to Islip, New York?

The flight from Colorado to Islip, New York depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Denver (a popular airport in Colorado) to New York John F Kennedy Intl Airport (the most popular airport in Islip, New York), then the flight time is 3h 36m on average. If you fly from Vail (another popular airport in Colorado) to New York John F Kennedy Intl Airport, then the average flight time is 4h 14m.

When did momondo last update prices for flights from Colorado to Islip Long Island Airport?

Prices for flights from Colorado to Islip Long Island Airport are updated daily.

How many operators does momondo search for flights from Colorado to Islip Long Island Airport?

There is 1 operator available for flights from Colorado to Islip Long Island Airport as of November 2026.

How old do you have to be to fly from Colorado to Islip Long Island Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$170 Cheap Flights from Colorado to Islip, New York in 2026/27

Find the cheapest flights from Colorado to New York

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:30 pm - 11:04 amDEN Denver Intl-ISP Islip Long Island

9h 34m1 stop Orlando

11:59 am - 9:48 pmISP Islip Long Island-DEN Denver Intl

11h 49m1 stop Orlando

$286Frontier

Thu, Jan 28 - Mon, Feb 1

10:41 am - 10:17 amDEN Denver Intl-ISP Islip Long Island

21h 36m1 stop Raleigh-Durham

11:58 am - 8:28 amISP Islip Long Island-DEN Denver Intl

22h 30m2 stops Wilmington New Hanover County Tampa

$322Multiple Airlines

Wed, Jan 27 - Sun, Jan 31

10:41 am - 10:17 amDEN Denver Intl-ISP Islip Long Island

21h 36m1 stop Raleigh-Durham

11:58 am - 8:28 amISP Islip Long Island-DEN Denver Intl

22h 30m2 stops Wilmington New Hanover County Tampa

$324Multiple Airlines

Wed, Jan 27 - Sun, Jan 31

5:00 am - 2:55 pmDEN Denver Intl-ISP Islip Long Island

7h 55m1 stop Baltimore/Washington

3:00 pm - 10:05 pmISP Islip Long Island-DEN Denver Intl

9h 05m1 stop Orlando

$407Southwest

Sat, Dec 5 - Sat, Dec 12

5:50 am - 2:55 pmDEN Denver Intl-ISP Islip Long Island

7h 05m2 stops Nashville Intl Baltimore/Washington

12:45 pm - 5:30 pmISP Islip Long Island-DEN Denver Intl

6h 45m1 stop Baltimore/Washington

$412Southwest

Sat, Dec 5 - Sat, Dec 12

11:05 am - 9:45 pmDEN Denver Intl-ISP Islip Long Island

8h 40m2 stops Dallas Love Field Baltimore/Washington

12:45 pm - 9:25 pmISP Islip Long Island-DEN Denver Intl

10h 40m2 stops Baltimore/Washington Houston Hobby

$417Southwest

Sat, Dec 5 - Sat, Dec 12

7:20 am - 3:45 pmDEN Denver Intl-ISP Islip Long Island

6h 25m1 stop Baltimore/Washington

5:25 pm - 11:55 pmISP Islip Long Island-DEN Denver Intl

8h 30m1 stop Baltimore/Washington

$419Southwest

Wed, Jan 27 - Sun, Jan 31

9:15 am - 9:30 pmDEN Denver Intl-ISP Islip Long Island

10h 15m2 stops Austin Bergstrom Baltimore/Washington

10:45 am - 7:55 pmISP Islip Long Island-DEN Denver Intl

11h 10m2 stops Baltimore/Washington Nashville Intl

$429Southwest

Wed, Jan 27 - Sun, Jan 31

6:41 am - 5:14 pmDEN Denver Intl-ISP Islip Long Island

8h 33m1 stop Orlando

6:15 pm - 9:30 pmISP Islip Long Island-DEN Denver Intl

29h 15m1 stop Orlando

$441Frontier

Sun, Dec 6 - Sun, Dec 13

7:10 pm - 3:45 pmDEN Denver Intl-ISP Islip Long Island

18h 35m1 stop Orlando

4:40 pm - 10:42 pmISP Islip Long Island-DEN Denver Intl

8h 02m1 stop Orlando

$451Frontier

Thu, Nov 19 - Mon, Nov 23

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Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets

Frontier

Jan 28

DEN11:30 pmDenver Intl

9h 34m

1 stop

ISP11:04 amIslip Long Island

Feb 1

ISP11:59 amIslip Long Island

11h 49m

1 stop

DEN9:48 pmDenver Intl

$286

Frontier

Dec 6

DEN6:41 amDenver Intl

8h 33m

1 stop

ISP5:14 pmIslip Long Island

Dec 13

ISP6:15 pmIslip Long Island

29h 15m

1 stop

DEN9:30 pmDenver Intl

$441

Frontier

Nov 19

DEN7:10 pmDenver Intl

18h 35m

1 stop

ISP3:45 pmIslip Long Island

Nov 23

ISP4:40 pmIslip Long Island

8h 02m

1 stop

DEN10:42 pmDenver Intl

$451

Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets

Southwest

Jan 15

DEN5:00 amDenver Intl

9h 45m

1 stop

ISP4:45 pmIslip Long Island

Jan 19

ISP12:30 pmIslip Long Island

8h 55m

1 stop

DEN7:25 pmDenver Intl

$390

Southwest

Jan 15

DEN1:50 pmDenver Intl

7h 50m

2 stops

ISP11:40 pmIslip Long Island

Jan 19

ISP5:45 amIslip Long Island

9h 35m

2 stops

DEN1:20 pmDenver Intl

$395

Southwest

Dec 5

DEN5:00 amDenver Intl

7h 55m

1 stop

ISP2:55 pmIslip Long Island

Dec 12

ISP3:00 pmIslip Long Island

9h 05m

1 stop

DEN10:05 pmDenver Intl

$407

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Thu 1/28

11:30 pm-11:04 am

1 stop9h 34m

Islip Long Island

Mon 2/1

11:59 am-9:48 pm

1 stop11h 49m

$286

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 1/27

10:41 am-10:17 am

1 stop21h 36m

Islip Long Island

Sun 1/31

11:58 am-8:28 am

2 stops22h 30m

$322

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 1/27

10:41 am-10:17 am

1 stop21h 36m

Islip Long Island

Sun 1/31

11:58 am-8:28 am

2 stops22h 30m

$324

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 12/5

5:00 am-2:55 pm

1 stop7h 55m

Islip Long Island

Sat 12/12

3:00 pm-10:05 pm

1 stop9h 05m

$407

Quickest round-trip

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 12/5

5:50 am-2:55 pm

2 stops7h 05m

Islip Long Island

Sat 12/12

12:45 pm-5:30 pm

1 stop6h 45m

$412

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sat 12/5

11:05 am-9:45 pm

2 stops8h 40m

Islip Long Island

Sat 12/12

12:45 pm-9:25 pm

2 stops10h 40m

$417

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 1/27

7:20 am-3:45 pm

1 stop6h 25m

Islip Long Island

Sun 1/31

5:25 pm-11:55 pm

1 stop8h 30m

$419

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 1/27

9:15 am-9:30 pm

2 stops10h 15m

Islip Long Island

Sun 1/31

10:45 am-7:55 pm

2 stops11h 10m

$429

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Sun 12/6

6:41 am-5:14 pm

1 stop8h 33m

Islip Long Island

Sun 12/13

6:15 pm-9:30 pm

1 stop29h 15m

$441

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Thu 11/19

7:10 pm-3:45 pm

1 stop18h 35m

Islip Long Island

Mon 11/23

4:40 pm-10:42 pm

1 stop8h 02m

$451

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

Can stopping save me money on Colorado to Islip, New York flights?

You could potentially save up to 14% on your flight if you consider stops on a Colorado to Islip, New York flight.

Cheap Colorado to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Islip, New York

Best Price Found	$170
Fastest flight time	7h 55m
Direct flights	None

The best one-way flight to Islip, New York from Colorado in the past 72 hours is $170. The best round-trip flight deal from Colorado to Islip, New York found on momondo in the last 72 hours is $286.

The fastest flight from Colorado to Islip, New York takes 7h 55m

There are no direct flights from Colorado to Islip, New York. There are no popular flight routes from Colorado to Islip, New York.

Search flight deals

Frequently asked questions about flying from Colorado to Islip, New York

When did momondo last update prices for flights from Colorado to Islip Long Island Airport?
Prices for flights from Colorado to Islip Long Island Airport are updated daily.
How many operators does momondo search for flights from Colorado to Islip Long Island Airport?
There is 1 operator available for flights from Colorado to Islip Long Island Airport as of November 2026.
How old do you have to be to fly from Colorado to Islip Long Island Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $383	Free Cancellation	Rating 8.0 4,219 reviews		Search Southwest flights

Montauk

Riverhead

Southampton

Amagansett

Sag Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Islip?

It is quick and easy to find Colorado to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Colorado to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Colorado.

I’m not ready to book a flight from Colorado to Islip right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.

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Cheap flights from Colorado to New York from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to New York departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets

Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

See travel insights to New York from

How to get the cheapest flight ticket from Colorado to Islip, New York

Can stopping save me money on Colorado to Islip, New York flights?

What is the cheapest airline that flies from Colorado to Islip Long Island?

What airlines fly to Islip, New York?

How long does it take to fly to Islip, New York?

Cheap Colorado to Islip, New York flight deals and tips

Best Price Found

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Frequently asked questions about flying from Colorado to Islip, New York

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo

Traveling to a place near New York?

Why use momondo?

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing New York

Fly your favorite airline to New York

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in New York. Availability may vary depending on flight origin and airline.

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